89991

Appears in sequences

• a(n) = (8*n+1)*(8*n+7).at n=37A001533
• Character of extremal vertex operator algebra of rank 27/2.at n=5A028535
• a(n) = 9*(10^n - 1).at n=4A086580
• n = k^2 - (reversal of k)^2 for two different values of k.at n=7A087672
• Inverse modulo 2 binomial transform of 10^n.at n=5A100681
• Numbers which can be expressed as the product of numbers made of only threes.at n=37A161141
• Numbers which can be expressed as the product of numbers made of only nines.at n=16A161147